The nervous system is one of the most complex expressions of biological evolution. Its high performance mostly relies on the basic principle of the action potential, a sequential activation of local ionic currents along the neural fiber. The implications of this essentially electrical phenomenon subsequently emerged in a more comprehensive electromagnetic perspective of neurotransmission. Several studies focused on the possible role of photons in neural communication and provided evidence of the transfer of photons through myelinated axons. A hypothesis is that myelin sheath would behave as an optical waveguide, although the source of photons is controversial. In a previous work, we proposed a model describing how photons would arise at the node of Ranvier. In this study we experimentally detected photons in the node of Ranvier by Ag+ photoreduction measurement technique, during electrically induced nerve activity. Our results suggest that in association to the action potential a photonic radiation takes place in the node.
Photons detected in the active nerve by photographic technique / Zangari, A.; Micheli, D.; Galeazzi, R.; Tozzi, A.; Balzano, V.; Bellavia, G.; Caristo, M. E.. - In: SCIENTIFIC REPORTS. - ISSN 2045-2322. - STAMPA. - 11:1(2021), p. 3022. [10.1038/s41598-021-82622-5]